Nanobot Unauthenticated WhatsApp Session Hijack via WebSocket Bridge
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA nanobot (HKUDS) Fixed in 0.1.3.Post7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2577
- 2026-10-03 Alias added: GHSA-3g85-xpc2-p2hq
References
More HKUDS vulnerabilities
- TI-2026-44237 LightRAG: Missing Authentication for Critical API Functions in Default Configuration CVSS 3.1CRITICAL 9.8
- TI-2026-78721 Missing authentication in HKUDS Vibe-Trading FastAPI server enables RCE CVSS 4.0CRITICAL 9.3
- TI-2026-44184 Improper authentication in HKUDS LightRAG CVSS 4.0CRITICAL 9.3
- TI-2026-26034 Zero-Click Indirect Prompt Injection and Authentication Bypass via Email Polling CVSS 4.0HIGH 8.9
- TI-2026-62432 HKUDS nanobot before 0.3.0 Server-Side Request Forgery via WebFetchTool CVSS 4.0CRITICAL 9.2
- TI-2026-25310 DeepCode 1.2.0 Path Traversal via SPA Catch-All Route in main.py CVSS 4.0HIGH 8.7
Sources
- CVE-2026-2577 · CVE Program
- CVE-2026-2577 · NVD
- FIRST EPSS
- GHSA-3g85-xpc2-p2hq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences